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[2001:470:27:1fa::2]) by smtp.gmail.com with ESMTPSA id g10-v6sm59337lfl.11.2018.09.04.18.44.23 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 04 Sep 2018 18:44:25 -0700 (PDT) From: Max Filippov To: qemu-devel@nongnu.org Date: Tue, 4 Sep 2018 18:43:40 -0700 Message-Id: <20180905014352.970-4-jcmvbkbc@gmail.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20180905014352.970-1-jcmvbkbc@gmail.com> References: <20180905014352.970-1-jcmvbkbc@gmail.com> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2a00:1450:4864:20::233 Subject: [Qemu-devel] [PATCH 03/15] target/xtensa: extract test for syscall instruction X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Max Filippov Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" - mark syscall instruction; - put syscall exception check right after privileged exception check; Signed-off-by: Max Filippov --- target/xtensa/translate.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/target/xtensa/translate.c b/target/xtensa/translate.c index ebee7bd65e48..450e30d316a8 100644 --- a/target/xtensa/translate.c +++ b/target/xtensa/translate.c @@ -1047,6 +1047,11 @@ static void disas_xtensa_insn(CPUXtensaState *env, DisasContext *dc) return; } + if (op_flags & XTENSA_OP_SYSCALL) { + gen_exception_cause(dc, SYSCALL_CAUSE); + return; + } + for (slot = 0; slot < slots; ++slot) { XtensaOpcodeOps *ops = slot_prop[slot].ops; @@ -2557,12 +2562,6 @@ static void translate_subx(DisasContext *dc, const uint32_t arg[], } } -static void translate_syscall(DisasContext *dc, const uint32_t arg[], - const uint32_t par[]) -{ - gen_exception_cause(dc, SYSCALL_CAUSE); -} - static void translate_waiti(DisasContext *dc, const uint32_t arg[], const uint32_t par[]) { @@ -4094,7 +4093,7 @@ static const XtensaOpcodeOps core_ops[] = { .par = (const uint32_t[]){3}, }, { .name = "syscall", - .translate = translate_syscall, + .op_flags = XTENSA_OP_SYSCALL, }, { .name = "umul.aa.hh", .translate = translate_mac16,